test(e2e): cover Canvas plugin conversation

[saurya]

Migration

Ports https://github.com/OpenHands/saas-deploy/pull/575 from OpenHands/saas-deploy so the test ships with the OpenHands-Cloud chart release it validates.

This pull request is based directly on main, which includes the foundational Playwright harness from OpenHands-Cloud #1048.

Original scenario contract

Summary

• add exactly one Playwright spec containing one authenticated OHE Canvas test
• select a configured plugin through stable picker, card, toggle, and count test IDs
• start a conversation with the selected plugin and a UUID-based unique prompt
• apply e2e_tests/fixtures/auth.json at file level because Chromium clears project storage state

Validation

• npm run lint (blocked only by 15 pre-existing lint/format errors in shared e2e files; this PR does not alter them)
• npx eslint tests/ohe-canvas-plugin-conversation.spec.ts
• npx prettier --check tests/ohe-canvas-plugin-conversation.spec.ts
• npx playwright test tests/ohe-canvas-plugin-conversation.spec.ts --list --project=chromium

Required environment

• BASE_URL: authenticated OHE deployment base URL
• OHE_E2E_PLUGIN_NAME: exact plugin name available in the member-visible plugin catalog
• generated e2e_tests/fixtures/auth.json for an authenticated OHE member with a launchable agent profile

The test fails helpfully if the required plugin is unavailable and never silently skips.

Cleanup

The test waits for asynchronous provisioning to reach a non-task Canvas conversation route, then deletes the provisioned app conversation in finally through /api/v1/app-conversations/{id}. Cleanup failure fails the test.

Live-fixture status

Not run live because this workspace has no authenticated OHE fixture or configured OHE_E2E_PLUGIN_NAME. Static discovery and focused lint/format checks pass.

This pull request was created by an AI agent (OpenHands) on behalf of the user.

Port validation

• Exactly one changed file: e2e_tests/tests/ohe-canvas-plugin-conversation.spec.ts.
• Exactly one Playwright test in the spec.
• Focused ESLint and Prettier checks passed.
• tsc --noEmit passed against the Cloud harness.
• Chromium Playwright --list discovery passed.
• Live execution still requires the explicit authentication and TEST_* contracts documented above.

AI disclosure: This pull request was migrated by an AI agent (OpenHands) on behalf of the user.